Process of canning.



UNITED STATES PATENT OFFICE.

KIIC-HI MIYAUCHI, OF KAGOSHIMA-KEN, JAPAN.

PROCESS OF CANNING.

No Drawing.

To all whom it may concern Be it known that I, KIICHI MIYAUOHI, a subject of the Emperor of Japan, residing at No. 159 Nishi Minamikata-Mura, Kawanabe- Gun, Kagoshima-Ken, Japan, packer, have invented certain new and useful Improvements in the Processes of Canning, of which the following is a specification.

This invention has reference to an improved process whereby a thin slice of wood such for instance as wood-shaving which has been thoroughly deglutinated and deodorized is prepared to be placed over the inner walls of the tincan for the purpose of preserving the food stuffs contained therein by means of insulating the can entirely proof against acid liquid, alkali, and tannin, so that it does not corrode or dissolve through a physical change, while at the same time preventing discoloration of the contents, such asfruit, shell fish, lobster, crab, etc., which possess more or less acidity or alkalinity, and which act so deteriorately upon the tin surface as to cause chemical changes, if the contents are placed in direct contact against the inner wall of the tin-can.

To obviate this defect, cans have been often surrounded internally with a porcelain lining, but this of course enhanced considerably the cost and labor for manufacturing same. It has been also proposed to em ploy, for the same purpose, ordinary parchment paper to be wrapped over the contents. Although this latter way of employing parchment paper is not so expensive as porcelain lining, yet it can not be admitted as being entirely commercially economical, especially when there is much more cheaper material as wood shavings, which is almost a universal article, to be utilized to obtain the same efficient effect.

The object of my invention is to facilitate the process of canning comparatively in simple and inexpensive manner but without either having the taste of the contents impaired or discolored.

Specification of Letters Patent.

Patented Nov. 6, 191 '7.

In carrying out my invention, I employ as an essential base for protecting the contents of the can, an insulating material con sisting of a thin slice of wood, preferably wood shavings, the preparation of which consists in first extracting in a suitable manner all the glutinous matters contained in such shavings of Wood and making it thor oughly free from any odor after which it is cut out or punched out into the size con forming with the shape of the inner walls of the can, including lid and bottom. The shaving so prepared will be then placed over the respective surfaces, so that the articles contained therein may be kept separate from the tin surfaces.

I have found that more eflicient results can be obtained by using the shaving in question previously saturated with eatable gelatin after the same has been perfectly deglutinated and deodorized, as by this means the deterioration arising from superheating of the cans during the sterilizing operation can be effectively prevented.

That I claim:

1. In the process of canning, the employment of thoroughly deglutinated and deodorized shavings of Wood which are adapted to cover entire surfaces of the inner walls of the tin can so as to keep the contained ar ticle separate from the tin surfaces, whereby preventing discoloration and deterioration of the contents Packed in the said can.

2. In the process of canning as set forth in claim 1 the step wherein the shaving to be used is saturated with eatable gelatin before the same is placed over the contents of the can, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses:

KIICHI MIYAUCHI.

Witnesses H. YASUMORE, S. NAKANO.

copies of this patent my be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

